Zurcheria

Zurcheria
Temporal range: Bajocian[1]
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Subclass: †Ammonoidea
Order: †Ammonitida
Family: †Hammatoceratidae
Subfamily: †Zurcheriinae
Genus: †Zurcheria
Douville, 1885

Zurcheria is a genus of dwarf ammonites from the Middle Jurassic included in the Hammatoceratidae[2] and lacking a keel. The shell is evolute, inner whorls exposed; whorls compressed and slightly overlapping. Bears ribs, which are sinuous folds that project strongly onto the arched venter.

References

Notes
  1. ^ Sepkoski, Jack (2002). "A compendium of fossil marine animal genera (Cephalopoda entry)". Bulletins of American Paleontology. 363: 1–560. Archived from the original on 2016-02-25. Retrieved 2017-10-18.
  2. ^ "Paleobiology Database - Zurcheria". Retrieved 2017-10-19.
Bibliography
  • W.J. Arkell, et al., 1957. Mesozoic Ammonoidea, Treatise on Invertebrate Paleontology, Part L, Mollusca 4. Geological Society of America and University of Kansas Press.
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